ECCN 1C003

NSAT

Magnetic metals, of all types and of whatever form, having any of the following .

Category: 1 - MaterialsProduct Group: C - MaterialsLast Updated: 2026-04-10

What This ECCN Covers

ECCN 1C003 controls magnetic metals of all types and forms meeting the criteria in the entry — for example certain high-permeability alloys and amorphous/nanocrystalline magnetic materials. These specialized magnetic materials support advanced electronics and sensing and are controlled for National Security and Anti-Terrorism reasons.

Who needs to check this?

Producers and exporters of high-permeability, amorphous, or nanocrystalline magnetic alloys and the components that use them.

Compliance tip

Classification depends on the specific magnetic properties and form in the entry — confirm your material against those criteria, since common magnetic alloys fall outside. Check the NS and AT Country Chart columns before relying on a license exception.

Reviewed by Jack Tan · Last reviewed: Jun 5, 2026

Items Covered

  • a.Initial relative permeability of 120,000 or more and a thickness of 0.05 mm or less;
  • b.Magnetostrictive alloys having any of the following:
  • 1. A saturation magnetostriction of more than 5 × 104−4; or
  • 2. A magnetomechanical coupling factor (k) of more than 0.8; or
  • c.Amorphous or 'nanocrystalline' alloy strips, having all of the following:
  • 1. A composition having a minimum of 75% by weight of iron, cobalt or nickel;
  • 2. A saturation magnetic induction (Bs) of 1.6 T or more; and
  • 3. Any of the following:
  • 3.a. A strip thickness of 0.02 mm or less; or
  • 3.b. An electrical resistivity of 2 × 10−4 ohm cm or more.

Control Reasons

NSNational Security

Items controlled for national security reasons under multilateral export control regimes.

Column 1: YesColumn 2: No
ATAnti-Terrorism

Items controlled for anti-terrorism reasons. Most items on the CCL have AT controls.

Column 1: YesColumn 2: No

Disclaimer

This information is for reference only. For official classifications, consult BIS or a qualified export control professional.

Official Reference